The U.S. Embassy in Mexico issued a new travel alert for Playa del Carmen after an explosion on a tourist ferry left several people hurt. Now, CBS News has learned the reason is a "real crime threat" connected to Mexico's drug cartels. CBS News correspondent Mark Strassmann reports.

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Colorful rice fields in SW China
Xinhua 21 Sep 2018 08:52 CEST

Colorful rice fields in SW China